100111221221122 has 16 divisors (see below), whose sum is σ = 152696751782400. Its totient is φ = 49213036956240.

The previous prime is 100111221221071. The next prime is 100111221221131. The reversal of 100111221221122 is 221122122111001.

It is a happy number.

It is a super-2 number, since 2×100111221221122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100111221221122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182974672 + ... + 183520987.

It is an arithmetic number, because the mean of its divisors is an integer number (9543546986400).

Almost surely, 2^{100111221221122} is an apocalyptic number.

100111221221122 is a deficient number, since it is larger than the sum of its proper divisors (52585530561278).

100111221221122 is a wasteful number, since it uses less digits than its factorization.

100111221221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366497961.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100111221221122 its reverse (221122122111001), we get a palindrome (321233343332123).

The spelling of 100111221221122 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".